From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DD9E3214A94 for ; Wed, 5 Nov 2025 04:07:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762315637; cv=none; b=ZuqDT4AOhlgG70lzvZDYpF7jm9BpYOvBubS4pMbBH8mFh608Zr6upkuBFWqg+56IR0gV2g9jUkHUrRtbq8Wm+TC44jzvIu9VfmSffJuMt08IhVkXdw1BrXQ9kK4IFFyO/zmhoHNoIHCf1ek/W+ttFsfil4U8Ft6ztxspEJ0cCHc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762315637; c=relaxed/simple; bh=DH5mIYqG4HNVJWlx5CcTG2Tk8+yTc87UoGD8kOzoTrY=; h=Date:To:From:Subject:Message-Id; b=WDbQLGMSEUudiloGma4dFACLk7gikWY1j5yJyouiht/Pp5gnTzw9Hit/enFt2tWGNmyASfph8i14KcstIxtZyLlvpn0DOQNVrPt3ct3rYjeK79Ierwobvd9fp5wZ5KPvLSeSxLnMgSFecMr3VG9Fxu7KJNsLy11xyRrZZM+wUFc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=bJ5cUJh4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="bJ5cUJh4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5A4ABC4CEFB; Wed, 5 Nov 2025 04:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1762315635; bh=DH5mIYqG4HNVJWlx5CcTG2Tk8+yTc87UoGD8kOzoTrY=; h=Date:To:From:Subject:From; b=bJ5cUJh4gi2Ue/+qsE4j9kF6MzZP4yKPCrEskarLttqPQcjYPfl6bheDP6N+7E1jw qjg77mRXMytnb8YrjJ31zWrBwk8cPaNOWtDcsK7pRx1dFR8QoFzwrhpD2k2JLEokPS p3BTWYm+j3DQUKerbLM+p9h5QAJOOyNi1iVUdxeI= Date: Tue, 04 Nov 2025 20:07:14 -0800 To: mm-commits@vger.kernel.org,rppt@kernel.org,lkp@intel.com,graf@amazon.com,changyuanl@google.com,bhe@redhat.com,maqianga@uniontech.com,akpm@linux-foundation.org From: Andrew Morton Subject: [to-be-updated] kexec-print-out-debugging-message-if-required-for-kexec_load.patch removed from -mm tree Message-Id: <20251105040715.5A4ABC4CEFB@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: kexec: print out debugging message if required for kexec_load has been removed from the -mm tree. Its filename was kexec-print-out-debugging-message-if-required-for-kexec_load.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: Qiang Ma Subject: kexec: print out debugging message if required for kexec_load Date: Mon, 3 Nov 2025 14:34:39 +0800 The commit a85ee18c7900 ("kexec_file: print out debugging message if required") has added general code printing in kexec_file_load(), but not in kexec_load(). Especially in the RISC-V architecture, kexec_image_info() has been removed(commit eb7622d908a0 ("kexec_file, riscv: print out debugging message if required")). As a result, when using '-d' for the kexec_load interface, print nothing in the kernel space. This might be helpful for verifying the accuracy of the data passed to the kernel. Therefore, refer to this commit a85ee18c7900 ("kexec_file: print out debugging message if required"), debug print information has been added. Link: https://lkml.kernel.org/r/20251103063440.1681657-4-maqianga@uniontech.com Signed-off-by: Qiang Ma Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202510310332.6XrLe70K-lkp@intel.com/ Cc: Alexander Graf Cc: Baoquan He Cc: Changyuan Lyu Cc: Mike Rapoport Signed-off-by: Andrew Morton --- kernel/kexec.c | 11 +++++++++++ 1 file changed, 11 insertions(+) --- a/kernel/kexec.c~kexec-print-out-debugging-message-if-required-for-kexec_load +++ a/kernel/kexec.c @@ -154,7 +154,15 @@ static int do_kexec_load(unsigned long e if (ret) goto out; + kexec_dprintk("nr_segments = %lu\n", nr_segments); for (i = 0; i < nr_segments; i++) { + struct kexec_segment *ksegment; + + ksegment = &image->segment[i]; + kexec_dprintk("segment[%lu]: buf=0x%p bufsz=0x%zx mem=0x%lx memsz=0x%zx\n", + i, ksegment->buf, ksegment->bufsz, ksegment->mem, + ksegment->memsz); + ret = kimage_load_segment(image, i); if (ret) goto out; @@ -166,6 +174,9 @@ static int do_kexec_load(unsigned long e if (ret) goto out; + kexec_dprintk("kexec_load: type:%u, start:0x%lx head:0x%lx flags:0x%lx\n", + image->type, image->start, image->head, flags); + /* Install the new kernel and uninstall the old */ image = xchg(dest_image, image); _ Patches currently in -mm which might be from maqianga@uniontech.com are kexec_file-fix-the-issue-of-mismatch-between-loop-variable-types.patch